Fire-brick arch and beick therefor



A. H. WILLETT.

FIRE BRICK ARCH AND BRICK THEREFOR. APPLICATION FILED 050.4. 1918.

Patented Oct. 31, 1922.

2 SHEETS-SHEET I.

I FM

A. H. WILLETT.

FIRE BRICK ARCH A-ND BRICK THEREFOR. APPLICATION FILED use. 4, 1918.

1,433,583.. Patented 001:. 31, 1922. 2 SHEETS-SHEET 2.

WITNESS.

Patented @ct. Bl. 19.22.

tlhll'l'iilid ALFRED H. WILLETT, OF WEST NEW '52 313K, NEVI JF E SEY, ASSIGNOR TO .l-ilvIEIttICAN ARCH COMPANY, (333 NEW N. 381, A CGLFORATJTEON 0F DEEMLV I FIREJLRICK .a ac

Application filed December H18. Serial No.

T 0 all whom a'tmag/ concern.

Be it known that I, ALFRED H. WILLETT, a citizen of the United States, residing at West New York, in the county of Hudson and State of New Jersey, have invented certain new and useful improvements in FiI'G-BllCk AICllGS and Bricks Therefor, of which the following is a specification.

This invention has reference to a form of" construction in which by the employment of a certain novel formation of reversible and invertible brick an archmay be constructed which will be either perforated "or imperforate or in whicha portion maybe imperforate and various arrangements of the perforations of the remaining portion maybe obtained by varying dispositions of the bricks. I I

.;The above, as well as other objects as may hereinafter appear, I obtain by means of a construction which I have illustrated in prei'erred form in the accompanying drawings, wherein: 3

Figure l is a horizontal sectional View through the upper portion of a locomotive fire box showing, in plan, an arch constructed in accordance with my invention; Figure 2 is a longitudinal vertical section through the fire box and arch structure shown in 1 1 except that the wing bricks are shown with a modified end where they bear against the side sheet; Figure 3 is a transverse sectional view through a fire box showing the arch structure of Figure 1 in end elevation; Figure 4: is a horizontal sectional view through the fire boX showing, in plan view, a modified arrangement or positioning of the bricks; and Figure 5 is a view of one of my improved bricks shown in perspective.

Referring now more particularly to Figs. 1 and 2, it will be seen that I have therein shown a fire box having side sheets 1, a fine sheet 2, a crown sheet 3, an inside rear sheet i and a water leg at 5, connected by circulating and brick supporting tubes 6 with the water space 7. Upon the tubes 6 I place the bricks 8 which are shown in detail in Fig. 5 and which have recesses 9 in one horizontal face and oppositely disposed supporting surfaces 10 and 11, the surfaces 10 being inaj or port I arrange projection 12 and upon the other corresponding recess 13, the two being so n'oportioned and disposed that when the brick is rested in position upon the tubes, as indicated in Fig.1, either the projections l'i will rolne in cc'uiztact with each other, leaving apertures acent to the tubes, as at 14:, and other apertures near the middle of the brick at I15, orelse, where it is desired to close the arch, that is to provide an arch or a portion of an arch which is imperforate, the projections 12 will engage thecorresponding recesses 13 in adjacent bricks as indicated at in Fig. l, and in all of the bricks shown in the arch of Fig. 4c.

in the arrangement shown inFig. 1, the on of the arch toward the rear is formed with perforations some of which are adjacent to the supporting tubes and others in staggered relation thereto along the middle line of each row of bricks. This disposition of the units or bricks Sserves to effectually breakup the. flow of gases or products of combustion traveling upward through the arch and produces uniform" heating and combustion effect in the fur- 1. A fire brick for arch constructionsprovided witha projection'upon one edge intermediate its ends, said pro ection extending from one horizontal face to the other,

and a correspondingly disposed and formed recess in the other edge, and oppositely disposed end supporting surfaces constructed to engage supportingmembers and to reversibly or invertibly support the brick whereby the projection on one brick may be made to contact with that on an adjacent brick or whereby the projection on one brick may be made to engage the recess in an adjacent brick.

2. A fire brick for arch constructions provided with a projection upon one edge intermediate its ends, said projection extending from one horizontal face to the other,

and a correspondingly disposed and formed recess in the'other edge, and. end supporting surfaces constructed to reversibly support the brick whereby the projection on one brick may be made to contact with that on an adjacent brick or whereby the projection on one brick may be made to engage the recess in an adjacent brick, there being formed apertures through the arch when projection engages projection but an imperforate arch when projection engages recess in adjacent bricks. j i 3. arch for fire boxes provided with circulation tubes, comprising in combination a plurality of counterpart bricks alternateiv supported in reversed relation onsaid tubes, each brick being constructed with a pro ectionon one of its edges intermediate its ends i A 3 brick being constructed with a projection on one of its edges intermediate its ends, said projection extending from one horizontal face to the other, and" a correspondingly formed and disposed recess in the other edge, certain of the bricks being arranged so that projections fit into recesses in portions of the arch to forman imperforate area of arch, other bricks being arranged with pro, jections and recesses abutting to form perforations through the arch adjacent the tubes and intermediate the tubes. said perforations alternating longitudinally .of the fire box. a V 5. 5A tube-supported arch for locomotive :6 re boxes havinga plurality of perforations ipherethrough adjacent the tubes and a plurality of perforations intermediate the tubes, said perforations alternating longitudinally ofthe firebox. I i j 6. A. tube-supported sectional brick arch for locomotive the boxes constructed-of a plurality of reversible, counter-part bricks, said bricks being so formed and arranged as to create a pluralityof perforations therethrough adjacent the tubes and a plurality of perforations intermediate the tubes, said perforations alternating longitudinally of the firebox. v i

In testimony whereof,- I have hereunto signed my name.. t. a i. .7

' ALFRED H. VVILLETT. 

